How long is the ceremony

We are getting married in a register office, super low key, none of this faffy nonsense. We have chosen the shortest and least amount of vows. Wondered if anyone else had done the same and how long it was? We ran through the vows ourselves and including the registrars words it was 1 minute 20 seconds. Even with the rings and my uncle giving me away. Will that be it or will they drag it out? I want it as quick as possible so I can get back and chill out. I have social anxiety so I just want the ceremony to be over!!!